Rule:2 3 O1

@RULE _2_3_O1

https://conwaylife.com/forums/viewtopic.php?p=25891#p25891

@TREE num_states=4 num_neighbors=8 num_nodes=27 1 0 2 0 3 2 0 0 0 0 1 1 2 0 3 2 0 2 0 2 3 1 3 1 3 2 2 0 2 0 3 3 5 3 5 4 4 6 4 6 3 5 1 5 1 4 6 8 6 8 5 7 9 7 9 3 1 1 1 1 4 8 11 8 11 5 9 12 9 12 6 10 13 10 13 4 11 11 11 11 5 12 15 12 15 6 13 16 13 16 7 14 17 14 17 5 15 15 15 15 6 16 19 16 19 7 17 20 17 20 8 18 21 18 21 6 19 19 19 19 7 20 23 20 23 8 21 24 21 24 9 22 25 22 25 @COLORS

0   0   0   0
1 255   0   0
2   0 255   0
3   0   0 255
4 255 255   0